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Chapter 3 science quiz review
Terms in this set (30)
Pangea is the ______ the Wegener suggested occured on Earth 300 million years ago.
Wegener inferred that the ancient _______ Mesosaurus and Lystrosaurus once lived on a single landmass that has since split apart.
Wegener used evidence from _______ _______, ________, and _______, to support his theory of continental drift.
land features, fossils, and climate
_______ _____ is the idea that the continents slowly moved over the Earth's surface.
Most geologists of Wegener's time ________ his idea of drifting continents.
_______ of the plant Glossopteris provided evidence for Wegener's hypothesis for continental drift.
The idea of continents moving slowly over Earth's surface was developed by German scientists _____ _____.
Wegener noticed that mountain ranges on the continents of South America and ____ line up.
As a continent moves ___ the poles, its climate gets colder.
As a continent moves toward the equator, its climate gets ____.
What feature forms the largest mountain range on Earth?
What process adds more crust to the ocean floor?
sea floor spreading
Where does subduction occur?
deep ocean trenches
What process or processes change the size and shape of the ocean?
sea floor spreading and subduction
______ is a device that scientist use to map the ocean floor.
A deep ocean trench is an underwater _______.
Molten material erupts ______ the central valley of mid ocean ridges.
The farther from a mid ocean ridge a rock sample is taken the ______ the rock is.
Sea floor spreading occurs at ____ ______ _______.
The pattern of magnetic stripes in rocks on either side of a mid-ocean ridge is the ____.
Earths plates meet at ______.
Breaks in the crust called ______ form where plates meet.
Plates slide past each other at ___________ __________.
A(n) ______ ________ forms where plates diverge on land.
_______ ________ drive Earth's plate movement.
Most ____________ ______________ where plates move apart occur along the mid-ocean ridges.
What theory describes the motion of and force driving Earth's plates?
What is the motion of Earth's plates like?
slow and constant
The San Andreas fault is an example of which kind of boundary?
Which feature forms at convergent boundaries?
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